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The role of DNA demethylase TET in Treg/Th17 differentiation.

Research Project

Project/Area Number 20K07541
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49070:Immunology-related
Research InstitutionChiba University (2022)
Keio University (2020-2021)

Principal Investigator

Nakatsukasa Hiroko  千葉大学, 大学院薬学研究院, 准教授 (90749334)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsDNAメチル化 / Th17細胞 / 制御性T細胞 / エピジェネティクス / TET / 腸内細菌 / AhR / Treg / Tfh細胞 / T細胞分化 / 自己免疫疾患
Outline of Research at the Start

DNAメチル化を含む染色体のエピジェネティック修飾は細胞の分化やがん化に密接に関与するが、免疫応答におけるDNAメチル化/脱メチル化の制御機構とその意義は明らかではない。これまでにDNA脱メチル化酵素であるTET (Ten-eleven translocation)をT細胞特異的に欠損するマウスを用い、Tetが制御性T細胞(Treg)のFoxp3安定化と末梢でのTreg/Th17分化に重要な役割を果たすことを見出した。本研究ではTETが制御するヘルパーT細胞分化に関与する遺伝子を明らかにし、DNA脱メチル化のT細胞分化の安定性と可塑性における意義を解明することを目指す。

Outline of Final Research Achievements

Ten-eleven translocation (TET) proteins regulate DNA methylation and gene expression. Previously we found that T cell-specific Tet2 and Tet3 double-knockout (Tet2f/fTet3f/fCd4-Cre; DKO) mice displayed splenomegaly and lymph adenopathy accompanied by uncontrolled activation of T cells which exhibited Th17- and/or follicular helper T (Tfh)-like phenotypes. In this study, we revealed that Tet2 and Tet3 regulate Treg/Th17 differentiation in the periphery. We found that Tet regulates Treg/Th17 differentiation via AhR signaling by gut microbiota-dependent tryptophan metabolites. Furthermore, gene expression and methylation analysis revealed that Tet regulates Th17 differentiation through DNA methylation of the Rara and Bach2 genes.

Academic Significance and Societal Importance of the Research Achievements

これまでヘルパーT細胞の分化機構に関しては転写ネットワークによる制御機構に関する報告が多くなされてきたが、エピジェネティック制御による調節機構についての研究は端緒についたばかりである。本研究では、Tetによる末梢でのTreg/Th17分化制御機構について明らかとし、本研究がさらに発展すれば、免疫疾患、炎症性疾患やがんの新規治療法確立への応用が期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Opposing functions of circadian protein DBP and atypical E2F family E2F8 in anti-tumor Th9 cell differentiation.2022

    • Author(s)
      Park SA, Lim YJ, Ku WL, Zhang D, Cui K, Tang LY, Chia C, Zanvit P, Chen Z, Jin W, Wang D, Xu J, Liu O, Wang F, Cain A, Guo N, Nakatsukasa H, Wu C, Zhang YE, Zhao K, Chen W.
    • Journal Title

      Nat Commun.

      Volume: 13(1) Issue: 1 Pages: 6069-6069

    • DOI

      10.1038/s41467-022-33733-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] STAP-2 Is a Novel Positive Regulator of TCR-Proximal Signals2022

    • Author(s)
      Saitoh Kodai、Kashiwakura Jun-ichi、Kagohashi Kota、Sasaki Yuto、Kawahara Shoya、Sekine Yuichi、Kitai Yuichi、Muromoto Ryuta、Ichii Michiko、Nakatsukasa Hiroko、Yoshimura Akihiko、Oritani Kenji、Matsuda Tadashi
    • Journal Title

      The Journal of Immunology

      Volume: 209 Issue: 1 Pages: 57-68

    • DOI

      10.4049/jimmunol.2101014

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Editorial: Hexose Uptake and Metabolism in Immune Homeostasis and Inflammation.2022

    • Author(s)
      Dunfang Zhang, Chaohong Liu, Hiroko Nakatsukasa, WanJun Chen
    • Journal Title

      Frontiers in immunology

      Volume: 12 Pages: 832293-832293

    • DOI

      10.3389/fimmu.2021.832293

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Single-Cell Analysis Revealed the Role of CD8+ Effector T Cells in Preventing Cardioprotective Macrophage Differentiation in the Early Phase of Heart Failure2021

    • Author(s)
      Komai Kyoko、Ito Minako、Nomura Seitaro、Shichino Shigeyuki、Katoh Manami、Yamada Shintaro、Ko Toshiyuki、Iizuka-Koga Mana、Nakatsukasa Hiroko、Yoshimura Akihiko
    • Journal Title

      Frontiers in Immunology

      Volume: 12 Pages: 763647-763647

    • DOI

      10.3389/fimmu.2021.763647

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Curcumin Analog GO-Y030 Controls the Generation and Stability of Regulatory T Cells2021

    • Author(s)
      Takashi MaruYama, Shuhei Kobayashi, Hiroko Nakatsukasa, Yuki Moritoki, Daiki Taguchi, Yoichi Sunagawa, Tatsuya Morimoto, Atsuko Asao, Wenwen Jin, Yuji Owada, Naoto Ishii, Yoshiharu Iwabuchi, Akihiko Yoshimura, WanJun Chen, Hiroyuki Shibata
    • Journal Title

      Frontiers in immunology

      Volume: 12 Pages: 687669-687669

    • DOI

      10.3389/fimmu.2021.687669

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Role of Bcl6 in DNA methylation-mediated T cell senescence and tumorigenesis.2022

    • Author(s)
      中司寛子、吉村昭彦
    • Organizer
      第51回日本免疫学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Expression and function of silly Lewis X glycans on mouse regulatory T cells.2022

    • Author(s)
      大石かなえ、西田匠吾、石倉晨規、安保博仁、中司寛子、川島博人
    • Organizer
      第51回日本免疫学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Expression and function of silly Lewis X glycans on mouse regulatory T cells.2022

    • Author(s)
      大石かなえ、西田匠吾、石倉晨規、安保博仁、中司寛子、川島博人
    • Organizer
      第21回次世代を担う若手のためのファーマ・バイオフォーラム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Expression and function of silly Lewis X glycans on mouse regulatory T cells.2022

    • Author(s)
      大石かなえ、西田匠吾、石倉晨規、安保博仁、中司寛子、川島博人
    • Organizer
      Sialoglyco 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of intestinal microbiota in DNA methylation-mediated T cell senescence and tumorigenesis.2021

    • Author(s)
      中司寛子、吉村昭彦
    • Organizer
      第50回 日本免疫学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Role of intestinal microbiota in DNA methylation-mediated T cell senescence and tumorigenesis.2021

    • Author(s)
      中司寛子、吉村昭彦
    • Organizer
      第80回 日本癌学会学術総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Epigenetics, microbiota, and T cell differentiation2021

    • Author(s)
      Hiroko Nakatsukasa
    • Organizer
      Nature Cafe: Type 2 immunity: challenges and opportunities
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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